Mathematical models to predict growth, fillet traits, and composition of wild traíra, Hoplias malabaricus
| Autor: | Ana Lúcia Salaro, Mariana Michelato, Thais Pereira da Cruz, Jonathan Willian Andrade Ribeiro, Valéria Rossetto Barriviera Furuya, Allan Vinnícius Urbich, Wilson Massamitu Furuya, Dayane Cheritt Batista |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
fish
Mathematical model biology 040301 veterinary sciences 0402 animal and dairy science 04 agricultural and veterinary sciences Body weight biology.organism_classification 040201 dairy & animal science SF1-1100 Animal culture meat quality 0403 veterinary science Hoplias malabaricus Animal science aquaculture Animal Science and Zoology Fillet (mechanics) Mathematics carcass growth curve |
| Zdroj: | Revista Brasileira de Zootecnia, Volume: 48, Article number: e20170176, Published: 25 NOV 2019 Revista Brasileira de Zootecnia v.48 2019 Revista Brasileira de Zootecnia Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ Revista Brasileira de Zootecnia, Vol 48 (2019) |
| Popis: | This study aimed to determine the length-weight relationship and mathematical models to predict dressed and fillet weight and yield and fillet composition of wild traíra, Hoplias malabaricus (Bloch, 1794). A total of 80 marketable-sized fish from 292.28 to 2879.57 g and 32.06 to 61.19 cm were used. The length:weight ratio was estimated using the equation: W = a × L b, in which W is body weight (g) and L is length (cm). The models of dressed and fillet weight and yield and body were elaborated using first-order ( y ^ i = β 0 + β 1 x i ) or second-order ( y ^ i = β 0 + β 1 x i + β 1 x i 2 ) linear regression analyses. The value of slope b in the length:weight ratio was 3.3732 and intercept was 0.0029. The prediction equations obtained for dressed weight, fillet weight, dressed yield, fillet yield, fillet gross energy, moisture, crude protein, crude lipid, and ash were, respectively: y ^ = 0.3244 + 0.9373 W, y ^ = 0.7651 + 0.4181 W, y ^ = 939.8015 + 0.0019 W, y ^ = 420.55170 + 0.0064 W, y ^ = 997.9600 + 0.0630 W, y ^ = 810.6500 − 0.0085 W, y ^ = 184.080 − 0.0111 W, y ^ = 3.1131 + 0.0049 W, and y ^ = 10.6110 + 0.0009 W, in which W is the body weight of fish (g). We demonstrated the possibility of elaborating realistic expressions to describe degutted weight, fillet weight, and fillet composition. However, lower mathematical adjustment was observed to estimate realistic prediction of dressed and fillet yield. |
| Databáze: | OpenAIRE |
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